Patent US3049533A successfully refreshed from Google Patents.
US3049533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil soluble orange and yellow dyes
Assignee: Wyeth Holdings LLC
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Filing: 1960-03-18
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Granted: 1962-08-14
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Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Penn F Spitzer
- 👤 Aagaard Fridtjof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:19
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0092; C09B67/0095; C09B67/008
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
17 words
IN THE PROCESS OF PREPARING AN OIL SOLUBLE, DUSTLESS, NON-CAKING FORM OF THE DYE OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |